You want to deflect a positively charged particle in an S- shaped path, as shown in Fig.

Question:

You want to deflect a positively charged particle in an S- shaped path, as shown in Fig. 19.33b, using only magnetic fields.
(a) Explain how this could be done by using magnetic fields perpendicular to the plane of the page.
(b) How does the emerging particle’s kinetic energy compare with the particle’s initial kinetic energy?